edm power supply plans?

I would like to build a small wire feed edm. Don't need help on the
cnc end, but do need a source for plans to build the high frequency
end. I have built many hf amplifiers for ham radio, so I think this
would be a reasonable approach to homebrew the spark end of edm. My
intent is to be able to edm small form tools and miniature punches
from hardened steel blanks.

If anyone can help I would appreciate it.

Thanks for reading this.

John Ocala Florida